Having read and extracted information >from records and tombstones in
the Spis Region of Slovakia, I encountered the names you mentioned
quite often. At one time I googled "nickname Pepi" and came up with
an interesting connection to the Spanish nickname (Pepe) for someone
named Joseph, because of the connection to the words, "padre putativo"
and the Ps at the beginning of the words! So it would seem this got
transferred to a woman's name, and someone generally named Josephine.
However, I don't think I encountered any men with the name Joseph
being called Pepi among my records.
Betti appeared for women with Hebrew or Yiddish names, Bayla,
Breindel, Bluma, Bracha, Devora (means a "bee"), Basha, Berta,
No direct connection to Ersebet, but it is certainly reasonable for a
woman whose name ends as in -bet or -beth to have been a Betti, Such
a nickname even exists in English speaking countries, where Betty is a
nickname for Elizabeth.
Beverly Hills, CA
Researching: GOLDMAN, STEINER, LANGER, GLUECKSMAN in various parts of
Galicia, Poland, such as: Nowy Targ, Wachsmund, Lopuszna, Ochotnica,
possibly Krakow, who migrated into Kezmarok or nearby
Straszky/Nagy-Eor/Nehre, both now in Slovakia.
GOLDSTEIN in Abaujszina (Sena), Szkaros, and Kosice, Slovakia;
Tolcsva, Hungary; Possibly Timosoara, Romania